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f@lettre tatrs ikutritt @ffice WILLIAM MARTIN, OF TARR FARM, PENNSYLVANIA.

Letters Patent No. 76,485, daad Api-tz 7, 186s.

IMPROVEMENT IN WELL-TUBES.v

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TO ALL WHOM IT MAY `CON CERN: l

Be it known that I, WILLIAM MARTIN, of Tarr Farm, in the county of Venango, and State of Pennsylvania, have invented a new and improved Well-Tube; and I do hereby declare the following to be` a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, and in which- Figure 1 is a longitudinal axial section of my invention.

Figure 2 is a side view of my improved well-tube.

Similar letters of reference indicate corresponding parts inthe two figures.

In this invention, the point has two ears, by which it is attached to the upper part of the tube, the latter having a longitudinal slot under the ears, through which it is riveted to them. While the well-tube is driving into the ground, the lower end of the cylindrical tube steps'in a socket in the upper end of the conical point, and, when the well has been sunk to the required depth, the upper part of the tube is raised, so as to allow the water to enter. A

In order that others skilled in the art to which 'my invention appertains may be enabled to make und use the same, I will proceed to describe it in detail. y

In the drawings, A represents the conical or polyhedral point, and B the hollow cylindrical upper part of my improved well-tube. The point A is provided with two upright ears, E E, longitudinally concave on their inner side, so as to t closely the outer surface of the tube B, which slides vertically between them. These ears` are about two inches in length, and are riveted to the tube B by stout rivets, r r. 4A socket, S, is bored down about three inches into the upper end of `thepoint A, to receive the lower end of the tube B while the instrument is being forced into the ground. The rivets 7' r are, at their outer end, tirmlyiixed to the ears E E, and extendthroughlongitudinal slots, z' i, made in the walls of tube B, under the ears, terminating in flat heads or nuts setting firmly against the inner walls of thetube, on either side ofthe slots. The slots t'z' are about threesixteenths of an inch in width and four inches in length, extending vertically upward from a point about one inch from the lower end of the tube. The rivets r 1' are about three-sixteenths of an inch in diameter. Ihe cars E E are of sutiicient widtlrand thickness to hold the rivets firmly, and keep the point A and tube B steadily and firmly attached together. 'Ihe upper part of the conical point Aat a a, is made larger in diameter than the tube B, so that the out-er side of the ears shall be flush with it, in order to make the hole in the ground slightly larger than the tube I3, and facilitate the moving and adjusting of the latter. The whole combined tubc, thus constructed, is driven into the ground until water is reached, when the operation of driving is-suspendcd, and the tube is raised up till a space is left between it and the point A, through which the surrounding water may freely enter the tubev at its bottom. It is secured in that position by fastening it properly at the surface of the ground, and the well is then ready for use.

I-Iaving thus described myinvention, what I claim as new, and desire to secure by Letter-s ratent, is-

'lhe point A, having the sockets S, the ears E and the broad shoulders a a, in combination with the tube Il, having the longitudinal slots it', and with the rivets 1- r, operating in the slots ifi, substantially as and for the purpose described. I

To the above specification of my improvementyI have signed my hand, this tenth day-of July, 1867.

' WM. MARTIN. Witnesses:

p HARRY McMiLLIN, A. II. Winnaars. 

